Cymulate's Breach and Attack Simulation (BAS) is a platform that performs simulated cyber attacks to test the effectiveness of security controls. The platform executes attack scenarios in a production-safe mode to validate security measures against current threats. It provides coverage of MITRE ATT&CK framework and simulates exposure to ransomware, malware, APT groups, and CVE exploits. The platform includes Email Gateway Simulation for testing spam filters with phishing emails, Endpoint Simulation for testing anti-malware tools with known malware files, and Behavioral Detection Simulation for assessing behavioral-based detection systems. The solution runs non-disruptive simulations in live environments without impacting business operations. It automatically validates threat exposure using real-time intelligence updated within 24 hours of emerging threats. The platform identifies vulnerabilities and security gaps by testing whether security controls can detect and stop simulated attacks. It assesses the effectiveness of security controls and prioritizes vulnerabilities that require immediate attention. The cloud-based platform provides continuous updates and enables testing of new threats as they emerge through assessments launched from the cloud, with some requiring a lightweight agent.